tests added

compiler/testData/codegen/boxWithStdlib/boxingOptimization/casts.kt

@@ -0,0 +1,17 @@
+
+import kotlin.test.assertEquals
+
+inline fun <R, T> foo(x : R?, block : (R?) -> T) : T {
+    return block(x)
+}
+
+fun box() : String {
+    assertEquals(1L, foo(1) { x -> x!!.toLong() })
+    assertEquals(1.toShort(), foo(1) { x -> x!!.toShort() })
+    assertEquals(1.toByte(), foo(1L) { x -> x!!.toByte() })
+    assertEquals(1.toShort(), foo(1L) { x -> x!!.toShort() })
+    assertEquals('a'.toDouble(), foo('a') { x -> x!!.toDouble() })
+    assertEquals(1.0.toByte(), foo(1.0) { x -> x!!.toByte() })
+
+    return "OK"
+}

compiler/testData/codegen/boxWithStdlib/boxingOptimization/checkcastAndInstanceOf.kt

@@ -0,0 +1,22 @@
+
+import kotlin.test.assertEquals
+
+inline fun <R, T> foo(x : R, y : R, block : (R) -> T) : T {
+    val a = x is Number
+    val b = x is Object
+
+    val b1 = x as Object
+
+    if (a && b) {
+        return block(x)
+    } else {
+        return block(y)
+    }
+}
+
+fun box() : String {
+    assertEquals(1, foo(1, 2) { x -> x as Int })
+    assertEquals("def", foo("abc", "def") { x -> x as String })
+
+    return "OK"
+}

compiler/testData/codegen/boxWithStdlib/boxingOptimization/fold.kt

@@ -0,0 +1,13 @@
+
+import kotlin.test.assertEquals
+
+fun box() : String {
+    val x = LongArray(5)
+    for (i in 0..4) {
+        x[i] = (i + 1).toLong()
+    }
+
+    assertEquals(15L, x.fold(0L) { x, y -> x + y })
+
+    return "OK"
+}

compiler/testData/codegen/boxWithStdlib/boxingOptimization/nullCheck.kt

@@ -0,0 +1,16 @@
+
+import kotlin.test.assertEquals
+
+inline fun <R, T> foo(x : R?, y : R?, block : (R?) -> T) : T {
+    if (x == null) {
+        return block(x)
+    } else {
+        return block(y)
+    }
+}
+
+fun box() : String {
+    assertEquals(3, foo(1, 2) { x -> if (x != null) 3 else 4 })
+
+    return "OK"
+}

compiler/testData/codegen/boxWithStdlib/boxingOptimization/progressions.kt

@@ -0,0 +1,28 @@
+
+import kotlin.test.assertEquals
+
+fun box() : String {
+
+    val result1 = (1..100).count { x -> x % 2 == 0 }
+    val result2 = (1..100).filter { x -> x % 2 == 0 }.size()
+    assertEquals(result1, 50)
+    assertEquals(result2, 50)
+
+    val result3 = (1..100).map { x -> 2 * x }.count { x -> x % 2 == 0 }
+    val result4 = (1..100).map { x -> 2 * x }.filter { x -> x % 2 == 0 }.size()
+    assertEquals(result3, 100)
+    assertEquals(result4, 100)
+
+    val result5 = (1L..100L).count { x -> x % 2 == 0L }
+    val result6 = (1L..100L).filter { x -> x % 2 == 0L }.size()
+    assertEquals(result5, 50)
+    assertEquals(result6, 50)
+
+    val result7 = (1L..100L).map { x -> 2 * x }.count { x -> x % 2 == 0L }
+    val result8 = (1L..100L).map { x -> 2 * x }.filter { x -> x % 2 == 0L }.size()
+    assertEquals(result7, 100)
+    assertEquals(result8, 100)
+
+    return "OK"
+}
+

compiler/testData/codegen/boxWithStdlib/boxingOptimization/safeCallWithElvis.kt

@@ -0,0 +1,28 @@
+
+import kotlin.test.assertEquals
+
+class A(val x : Int, val y : A?)
+
+fun check(a : A?) : Int {
+    return a?.y?.x ?: (a?.x ?: 3)
+}
+
+fun checkLeftAssoc(a : A?) : Int {
+    return (a?.y?.x ?: a?.x) ?: 3
+}
+
+fun box() : String {
+    val a1 = A(2, A(1, null))
+    val a2 = A(2, null)
+    val a3 = null
+
+    assertEquals(1, check(a1))
+    assertEquals(2, check(a2))
+    assertEquals(3, check(a3))
+
+    assertEquals(1, checkLeftAssoc(a1))
+    assertEquals(2, checkLeftAssoc(a2))
+    assertEquals(3, checkLeftAssoc(a3))
+
+    return "OK"
+}

compiler/testData/codegen/boxWithStdlib/boxingOptimization/simple.kt

@@ -0,0 +1,12 @@
+import kotlin.test.assertEquals
+
+inline fun <R> foo(x : R, block : (R) -> R) : R {
+    return block(x)
+}
+
+fun box() : String {
+    val result = foo(1) { x -> x + 1 }
+    assertEquals(2, result)
+
+    return "OK"
+}

compiler/testData/codegen/boxWithStdlib/boxingOptimization/unsafeRemoving.kt

@@ -0,0 +1,34 @@
+
+import kotlin.test.assertEquals
+
+fun returningBoxed() : Int? = 1
+fun acceptingBoxed(x : Int?) : Int ? = x
+
+class A(var x : Int? = null)
+
+fun box() : String {
+    assertEquals(1, returningBoxed())
+    assertEquals(1, acceptingBoxed(1))
+
+    val a = A()
+    a.x = 1
+    assertEquals(1, a.x)
+
+    val b = Array<Int?>(1, { null })
+    b[0] = 1
+    assertEquals(1, b[0])
+
+    val x = 1 : Int?
+    assertEquals(1, x!!.hashCode())
+
+    val y = 1000 : Int?
+    val z = 1000 : Int?
+    val res = y.identityEquals(z)
+
+    val c1: Any = if (1 == 1) 0 else "abc"
+    val c2: Any = if (1 != 1) 0 else "abc"
+    assertEquals(0, c1)
+    assertEquals("abc", c2)
+
+    return "OK"
+}

compiler/testData/codegen/boxWithStdlib/boxingOptimization/variables.kt

@@ -0,0 +1,22 @@
+
+import kotlin.test.assertEquals
+
+inline fun <R, T> foo(x : R, block : (R) -> T) : T {
+    var y = x
+    var z = y
+    z = x
+    return block(z)
+}
+
+fun box() : String {
+    assertEquals(1, foo(1) { x -> x })
+    assertEquals(1f, foo(1f) { x -> x })
+    assertEquals(1L, foo(1L) { x -> x })
+    assertEquals(1.toDouble(), foo(1.toDouble()) { x -> x })
+    assertEquals(1.toShort(), foo(1.toShort()) { x -> x })
+    assertEquals(1.toByte(), foo(1.toByte()) { x -> x })
+    assertEquals('a', foo('a') { x -> x })
+    assertEquals(true, foo(true) { x -> x })
+
+    return "OK"
+}